About Us

About ESI Technologies Group

ESI Technologies Group is the foremost supplier of Process Equipment & Engineering Solutions for the Biotech, Pharmaceutical, Chemical, Semi-Conductor, and Food & Beverage industries in Ireland and the UK. ESI also caters to the Nuclear/Power and Oil & Gas sectors in the UK.

Our supply partners include renowned blue chip companies such as Emerson, Flowserve, Crane, ITT, Millipore, Alfa Laval and Parker, along with privately owned companies like Habonim, EBRO, Amazon, and Continental Disc Corporation.

Since its establishment in 1919, ESI has maintained a rich history and sustained growth in both Ireland and the UK.

Operating under the motto “More than Equipment Suppliers…Solution Providers!” we have built our offerings on the commitment and expertise of our personnel. The greatest asset lies in our knowledge and our core Engineers at ESI collectively possess over 300 years of experience in Process Applications, specifically in Valves, Pumps, Control Systems, Safety Measures, Aseptic Processes, and Instrumentation.

We are not solely reliant on manufacturers for support, as all our staff undergo factory training. This enables us to provide quick turnaround times for quotes and a customer-centric rapid response. Consequently, all knowledge remains in-house, and ESI handles the sizing and selection of equipment. This approach allows us to cultivate long-term strategic perspectives and offer comprehensive process solutions, fostering enduring relationships with our clients. Furthermore, our Engineering team collaborates closely with on-site engineers, ensuring competitive technical solutions and the ability to suggest and source alternatives based on their vast experience.

When combined with our comprehensive Service Division, staffed by product-trained engineers specialising in repair, installation, and commissioning, we possess extensive expertise in effectively delivering large projects since our inception over 100 years ago.



"We provide quality products and solutions drawing on our vast knowledge and experience"

Customer Focused

"We listen to our customers' needs and work collaboratively to provide solutions"


"We work together to share responsibilities for a common goal"


"We pride ourselves on integrity built on a foundation of trust, accountability and reliability"


ESI consists of a dedicated team of people in Ireland and the UK. We are committed to customer satisfaction.


Our Vision at ESI is to be a complete process partner that offers best-in-class, energy-efficient and innovative flow control/process equipment and engineering solutions that meet our customers' net zero goals. A company customers want to work with and employees want to work for.

Instrumentation Engineer
Project Management

"I just wanted to thank you and your team for all the effort to get this delivery today. Equipment that were long lead time items, bringing the original delivery date forward. Keeping me up to date with progress and feedback from manufacturing.

You folks have gone above and beyond to ensure we could stay on track to deliver this important project for our Client, as well as consistently pulling in delivery dates where possible.

The continued support of the ESI team is greatly appreciated.

Jim Creane
Group Purchasing Manager APC

I have worked with ESI Technologies on numerous projects over the years. At that time, I found ESI to be extremely diligent and professional in all dealings I have had with them. All projects were delivered to a high standard and always met technical specifications along with commercial and delivery expectations. ESI’s vast knowledge and experience made working on these projects so much easier and helped immensely to always maintain project schedules.

Lead Design Engineer
UK Engineering Consultants

"A great team that’s very customer-focused, with the technical expertise to get the job done, with the right kit. I very much appreciate all the support guys"

Contracts Manager
Ireland Biotech Facility

"ESI is a very good company and a reliable industrial partner"

UK Industrial Gas Systems Contractors

"Fantastic company to deal with"

Lead Engineer
Ireland Biotech Facility

"A great company to do business with. Keep up the great work you do!"

Leading Pump Manufacturer

"Success is never an accident. It’s the thousand little things that you do right. ESI is a great team!"

Process Engineer
API Plant in Ireland

"I’ve worked with ESI for over 10 years, and always found them great to deal with, always supplying a good product or service, and as a team they’re committed to the customers needs"

Procurement Specialist
API Plant in Ireland

"It has been a pleasure working with you all, you are the nicest and always the most responsive vendor!"



If you like a challenge, have a good aptitude to learn and above all strive for success, then why not consider a position at ESI? As employees, we are here because we want to be here. We enjoy our work — and each other.


Our supply partners include some of the world's largest blue chip companies including Alfa Laval, Crane, Emerson, Flowserve, ITT, Millipore and Parker and privately owned companies such as Amazon, Continental Disc Corp, EBRO and Habonim, Spirax Sarco and Valex.


Catch up with the latest news from ESI .


Celebrating over 100 years in business, ESI now consists of a dedicated team of people in Ireland and the UK.


Southern Engineering was founded in the early 1900s by the Foley family and was the largest supplier of general Engineering Equipment in Ireland


First signed an agency agreement with SKF Bearings


Sean P. Foley former Managing Director & Owner of Southern Engineering

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